17
to tighten the terminal screw.
Fig 5.1.1
Fig 5.1.2
5.2 Power Cord Connection
Notes
：
①
Every unit should be equipped with a circuit breaker for short-circuit and overload
protection.
②
During operation, all indoor units connected to the same outdoor unit system must be
kept energized status. Otherwise, the unit can’t operate normally.
Fig 5.2
For units with single-phase power supply.
(1) Detach the electric box cover.
(2) Let the power cord pass through the wiring through-holes.
(3) Connect the power cord to terminal "L, N, " .
(4) Fix the power card with wiring clamp.
5.3 Connection of Communication Wire between Indoor Unit and
Outdoor Unit (or indoor unit)
(1) Detach the electric box cover.
(2) Let the Communication cable pass through the wiring through-holes.
(3) Connect the communication wire to terminal D1 and D2 of indoor 4-bit wiring board, as
shown in Fig 5.3.1.
Compact 4-Way Cassette Indoor Unit
(
1)
Units: mm
(
in)
(
3/8
)